Furnace



C. A. BOWEN Jan. 28, 1936.

FURNACE Filed Nov. 10, 1933 R O m E V N I CAM r0 A. BOWN BY M 44 ATTORNEYS.

45 parallel relation at their upper and lower ends Patented Jan. 28, 1936 I I'NITED STATES PATENT OFFICE N FURNACE Clinton A. Bowen, Corning, N. Y., assignor to Corning Glass Works, Corning, N. 2., a corporation of New York Application November 10, 1933, Serial No. 697,501 2 Claims. 263-46) This invention relates to furnaces and more of the blocks l5'and hold them in proper posiparticularly melting furnaces such as are used tion on the bottom 84. for melting glass. Secured to the standards ill slightly above the Due to the tremendous heats necessarily emuppermost screws H are brackets l9 which ex- 5 ployed for melting the constituents used in maktend inwardly toward the upper edges of the 5 ing' glass and the consequent excessive expansion blocks l5 and supported on these brackets are and contraction of the furnace walls and their metal plates 20 carrying side walls 2i of the supports, much diflicultyis experienced in maincombustion chamber of the furnace. Tuck taining proper alignment of the refractories from stones 22 close the space between the upper edges which the furnace walls are made. Moreover, of the blocks 55 and the lower edges of the side 10 due to the lack of mechanical strength of the walls 2i and serve to protect the metal parts refractories ordinarily employed in the glass art, from the intense heat of the furnace.

much steel is used in and about glass melting Attached to the standards 80 above the brackfurnac'es as the skeleton supports for the reets [9 are brackets 23 which project inwardly and fractories; This further complicates the situan age th wall 2! n a ts upper d up- 15 tion as the coefiicients of expansion of metals is po d Sliding movement on the brackets 23 so much greater than those of refractories coma e -shaped p a e 23 pon Which the Skew monly employed that constant watch must be back c s 25 ofthe furnace p 26 are D- maintained and adjustments must be continually p t d. Atta h d t th standards t! s ightl ZO made in the furnace structure to compensate for above the brackets 23 are plates 27 havin r dthe expansion difierences in the materials going d penin s hr u h which adjustin r w 8 to make up the furnace. project. As shown the inner ends of these screws The object of the present invention is to faengage th v t al leg f the an d Pla 24 cilitate the making of adjustments on a furnace 50 a to compensate for y p ns C011- as expansion or contraction of its component, traction Of the cap 26. Inorder to facilitate the 25 parts takes place. free movement of the plates 24 on the brackets The above and other objects may be ac m- 23 I attach to the horizontal leg of each plate 24 plished by employing my invention which e rivets 29 the dome shaped heads of which bear bodies among its features a rectangular t l on the brackets 23 and permit of relatively free 30 frame carrying brackets upon which the ref sliding movements between the parts. 30

- tories forming the side walls and cap of the furn us a h f na ats up a d xpansi n nace are independently supported and adjustable 0f h p r takes P the Screws l7 and 28 members carried by the frame for compensating may be adjusted o maintain the Wa and p in for the difierences of expansion and contraction Proper alignment By mpl yin a justm n s of t metal and r fractory parts, for the side blocks l5 which are independent of 3 In the drawing: the adjustments of the cap, I am able to main- Fig. 1 is a side view of a furnace constructed tain the p p r alignment of all of the parts in accordance with thi i t and without subjecting them to undue strain and Fig. 2 is a transverse sectional view taken on Possible injury- Moreover, by employing my 0 the line f Fig. construction the removal and replacement of the 40 In carrying my invention into practice I com side walls 2| may be effected without the necesstruct a plurality of rectangular frames consistsity of disturbing the cap 26 and also the side of t n I Y blocks l5 and bottom I 4 or any parts thereof may mg 8 dams 0 which are held m Spaced be wholly removed and replaced without disturbby girders H and I2, respectively. Supported on the girders It! in spaced parallel relation are v and described the referred embo ent of m beams P 9 the refractory i of invention, it is to be understood that minoi glass meltmg tank 15 supported- Extendmg P changes in the details of construction, combina- Wardly from the edges of the floor are slde tion, and arrangement of parts may be resorted 50 blocks l5 and attached to the standards l0 are t th t departing from t spirit and scope plates l6 having threaded openings through of my invention as claimed.

Y which screws l1 project. As shown, these screws What I claim is:-

are provided at their innermost ends with V- 1. In a glass melting furnace a plurality of While in the foregoing there has been shown I shaped fingers I8 which engage the outer faces vertical standards, girders at the upper and lower 55 ing the side walls 2| and cap 26. 45 v ends of the standards, brackets intermediate the ends of the standards side walls supported on the-brackets, brackets on the standards between their upper ends and the first mentioned brackets, a cap, an angle bar along each side of the cap, rivets on each angle bar, said rivets resting on the second mentioned brackets, adjusting screws carried by the standards and engaging the outer side faces of the angle bars, a bottom supported on the girders at the lower ends of the standards, side blocks between the bottom and the lower edges of the side walls and adjusting screws carried by the standards and engaging the side blocks.

2. in combination, a glass melting furnace comprising a tank composed of a bottom and side blocks forming a relatively shallow trough, girders supporting the bottom, standards extending upwardly parallel with the side blocks, brackets on thestandards, side walls supported on the brackets independently of the side blocks, brackets on the standards above the first mentioned a cap supported on the second menticned brackets independently of the side walls, tuck-stones between the sides of the tank and the side walls and independently adjustable means. 1

carried by the standards for holding the side blocks in place against the pressure of the contents of the tank and independently adjustable means carried by the standards for compensating for the expansion and contraction of the cap.

CLINTON A. BOWEN. 

